Which of the following is a typical feature of an ATP-driven active transport mechanism?
A) The transport protein must cross to the correct side of the membrane before the solute can bind to it.
B) The transport protein is irreversibly phosphorylated as transport takes place.
C) The transport protein catalyzes the conversion of ADP to ATP.
D) The solute moves against the concentration gradient.

Question

Quizplus · Accepted Answer

A typical feature of an ATP-driven active transport mechanism is that the solute is moved against the concentration gradient. This requires the input of energy from ATP hydrolysis, which is used to drive a conformational change in the transport protein that enables it to move the solute from one side of the membrane to the other. Options A and B are not typical features of ATP-driven active transport mechanisms, while option C is incorrect as transport proteins do not catalyze the conversion of ADP to ATP.

Which of the Following Is a Typical Feature of an ATP-Driven